Plow and cultivator disk.



F. E. 'CANDA.

PLOW AND CULTIVATOR DISK.

APPLICATION FILED APR.13, m4.

1 1 86,880. Patented June 13, 1916.

THE COLUMBIA PLANOURAPH co., WASHINGTON. n. c.

FERDINAND E. GANDA, OF NEW YORK, N. Y.

PLOW AND CULTIVATOR DISK.

Specification of Letters Patent. Patented J n 13 ,1916

Application filed April 13, 1914. Serial No. 831,566.

To all whom it may concern:

Be it known that I, FERDINAND E. CANDA, a citizen of the United States of America, and a resident of New York, in the county of New York and State of New York, have invented a certain new and useful Plow and Cultivator Disk, of which the following is a specification.

My invention relates to improvements in rotary plow disks, cultivator disks, harrow disks, and the like, and comprises a disk for use in rotary plows, cultivators, harrows' struction of rotary disks for plows, cultiv vators, harrows, etc., hereinafter described and particularly pointed out in the appended claims.

The objects of my invention are to make the disks of rotary plows, cultivators, harrows, etc., more efficient in action; to cause such disks not merely to turna furrow, but

also to break up the ground thoroughly, and

to distribute the ground in a finely broken condition, in rear of the disk; to cause such disks to pass through the ground with less resistance; and to accomplish the above objects by a relatively simple and inexpensive construction.

I will now proceed to describe my invention with reference to the accompanying drawings, and will then point out the novel features in claims.

In the drawings: Figure 1 shows a front elevation of a disk embodying my invention. Fig. 2 shows a transverse section of such disk on the line a"-m of Fig. 1. Fig. 3 shows a top View of the disk in one of the various positions which such disk will assume in action; the disk being in a position oblique to the direction of progress and also inclined with respect to the vertical; so that such disk is seen in perspective. Fig. 4: shows a transverse section of the disk proximately triangular.

' As is well known, rotary plow dlsks, 1n

on the line 40-00 of Fig. 1, the disk being in a position such as shown in Fig. 3, and the action of the disk in its progress through the ground being illustrated. 'Fig. 5 shows a fragmentary elevation. of a portion of a disk embodying an alternative construction;

and Fig. 6 shows a fragmentary transverse section of such disk on. theline yy of Fig. 5. I p 7 1 Referring first to Figs. l-t inclusive. Numeral 1 designates thedisk itself,which,

as is commonly the case, is a dished me tallic disk having a sharp cutting edge 2 at its periphery and having the usual central aperture 3 for attachment to a supporting axle. plows, cultivators, harrows, etc., in which such disks are used, is well known, and therefore I have not thought it necessary to illustrate the com'plete plow, harrow, or cultivator, but merely toillustrate the disk itself. At suitable points intermediate its center and its periphery, tongues 4; are

pressed inward on the concave side of the disk, such tongues being left in an oblique position and having cutting edges 5 and 6. In the construction shown, these tongues 4 are approximately triangular but I do not limit myself to any particular shape ofthese tongues. In the construction shown, since these tongues 4 are approximately triangular, the openings 7 formed in the disks by the pressing in of such tongues,

action, turn a furrow in much the same man ner as a stationary plow share; but since these disks rotate, and also cut at their sharp peripheral edges, they advance through the ground with less resistance than that offered by an equivalent stationary plow share. The ordinary imperforate plow disk merely turns a furrow, with some incidental breaking up. of the clods; whereas my improved disk not only cuts up the clods by the action of the cutting edges of the tongues 4, but also causes a large proportion of the earth turned to pass through the openings 7. The

in so passing through these openings .1

earth,

The construction of the are also ap- 7, is further broken and is distributed, in

rear of thedisk, in a finely broken condition so that, in many cases, it will be unnecessary to harrow the ground preparatory to seeding. 7

In the alternative construction, illustrated in Figs. 5 and 6, the disk is provided with copies .of this patent maylbe obtained for and the other to the rear.

tongues 87 and 9, arranged in pairs, one

tongue of each pair projecting to the front The action of this disk is substantially the same as that of the disk shown in Figs. 1A inclusive, ex-

tongues, being provided in the disk and serv-c passage of earth to the rear of 1 ing; forthe said disk. 7 V

2. A disk for rotary plows, harrows, cultivators, etc.,.comprising a disk concave on one side and provided on it's. concave side with projecting tongues, forced inward from the ,bodyof the material of the disk, openings, resulting from such forcing in of the tongues, being providedin the disk and serving for the passage of earth to the rear of said disk. i i p 1 3. A disk for rotary plows, harrows, cultivators, etc., comprising a disk concave on one side and providedon its concave side with projecting tongues, forced inward from the body of the material of the disk and having cutting edges, openings, resulting from such forcing in of the disks, be

ing provided in the disk and serving for the T passage of earth to the rear of said disk.

,4, A disk for rotary plows, harrows, cul t1vators,etc,, comprising a disk concave on its front face and convex on its rear face and such tongues adapted to break up the earth through which the disk passes, 6. A disk for. rotary plows, harrows, cultivators etc. com arisin a disk )rovided v, 7 7 b with projecting tongues arranged in pairs from the body of the material of the disk,

certain of such tongues projecting forwardly from the front face of the disk, and others rearwardly from the rear face of the disk,

openings, resulting from such forcing in or out of the tongues, being provided in the disk and serving for the the rear of said disk.

'7. A disk for rotary plows, harrows, cultivators, etc., comprising a disk provided with projecting tongues arranged in pairs and forced alternately forwardly and back wardly from the body of material of the disk, openings, resulting from such forcing in or out of the tongues, being provided in passage of earth to the disk, and serving for the passage of earth I to the rear of saiddisk.

In testimony whereofI have signed this speclficatlon 1n the presence of two subscribing witnesses.

FERDINAND E. OANDA.

WVitnesses:

H. M. MARBLE, PAUL H. FRANKIE.

five cents each, by addressing the Commissioner of Patents; Washington, 1). 0." 

